CN211549899U

CN211549899U - Blade damping device of wind driven generator

Info

Publication number: CN211549899U
Application number: CN201922459945.0U
Authority: CN
Inventors: 杨茂枝
Original assignee: Hangzhou Jingwei Technology Co ltd
Current assignee: Tianjin Xinneng Technology Co.,Ltd.
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-22
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a aerogenerator's blade damping device, include the stand and set up the mounting groove in the stand front side, the power generating equipment has been inserted in the mounting groove, power generating equipment's output has the pivot through the shaft coupling rigid coupling, the front end of pivot is fixed to have cup jointed the lantern ring, lantern ring periphery is provided with a plurality of flabellums, power generating equipment's outer fringe bilateral symmetry is provided with the buffer gear who is connected with two relative inside walls in the mounting groove, just power generating equipment's outer fringe longitudinal symmetry is provided with the tractive mechanism that is connected with two relative inside walls in the mounting groove. The utility model discloses well traction mechanism can realize the stable protection to power generating equipment with buffer gear's cooperation, reduces rocking of the flabellum of power generating equipment and front side to the at utmost to guarantee the holistic stability of aerogenerator, stop the emergence of incident.

Description

Blade damping device of wind driven generator

Technical Field

The utility model relates to a aerogenerator technical field especially relates to an aerogenerator's blade damping device.

Background

For centuries, like hydraulic machines, wind turbines have played an important role in the development of productivity as a power source to replace manpower and animal power. The wide application of modern electromechanical power and the discovery of middle east oil fields in the 50 s of the twentieth century slowed the development of wind turbines. In the early 70 s, the problem of energy shortage occurs due to the oil crisis, people recognize the instability and the limitation of the conventional mineral energy supply, and the search for clean renewable energy sources becomes an important subject of the modern world. Wind energy has attracted attention again as a renewable, pollution-free natural energy source.

The wind driven generator has simple working principle, the wind wheel rotates under the action of wind force, the kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, and the generator rotates under the drive of the wind wheel shaft to generate electricity. In a broad sense, wind energy is also solar energy, so that the wind power generator is a heat energy utilization generator which uses solar energy as a heat source and uses the atmosphere as a working medium. However, the blades of the wind driven generator are easily blown to generate vibration under the action of huge wind force, so that the whole wind driven generator is shaken, the whole stability of the wind driven generator is influenced, and safety accidents are easily caused.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: the blade of the wind driven generator is easily blown to generate tremble under the action of huge wind force, so that the whole shaking of the wind driven generator is caused, the whole stability of the wind driven generator is influenced, safety accidents are easily caused, and the blade damping device of the wind driven generator is further provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a aerogenerator's blade damping device, includes the stand and sets up the mounting groove in the stand front side, the power generation facility has been inserted in the mounting groove, the output of power generation facility has the pivot through the shaft coupling rigid coupling, the front end of pivot is fixed to be cup jointed the lantern ring, lantern ring periphery is provided with a plurality of flabellums, the outer fringe bilateral symmetry of power generation facility is provided with the buffer gear who is connected with two relative inside walls in the mounting groove, just power generation facility's outer fringe longitudinal symmetry is provided with the tractive mechanism that is connected with two relative inside walls in the mounting groove.

Preferably, the drawing mechanism includes that the symmetry sets up four U-shaped framves on two relative inside walls in the mounting groove uniformly, and every it has the reversing lever, every to all rotate the interlude in the U-shaped frame the middle part of reversing lever has all fixedly cup jointed the reel, the reel is wound outward and is had the metal that is connected with the power generating equipment outer fringe to act as go-between, and every it establishes two first springs at both ends about the reversing lever to all be provided with the symmetry in the U-shaped frame, two the one end that first spring is relative respectively with the left and right sides rigid coupling of reel, two the one end that first spring carried on the back mutually respectively with two relative inside wall rigid couplings in the U-shaped frame.

Preferably, the first spring is a strong torsion spring.

Preferably, buffer gear includes that the symmetry fixes two telescopic links on two relative inside walls in the mounting groove, two the relative one end of telescopic link all with power generation facility's outer fringe looks rigid coupling, and two the telescopic link all overlaps outward and is equipped with the second spring.

Preferably, both of the second springs are strong compression springs.

Preferably, the number of the fan blades is five to seven, and the fan blades and the lantern ring are connected together in an integrated forming mode.

The utility model has the advantages that: the flabellum circumference sets up outside power generation facility's output, and when the flabellum was blown by huge wind-force and takes place tremble like this, traction mechanism and buffer gear's cooperation can realize the stable protection to power generation facility, reduces rocking of the flabellum of power generation facility and front side to the at utmost to guarantee the holistic stability of aerogenerator, stop the emergence of incident.

Drawings

Fig. 1 is a schematic structural view of a blade damping device of a wind turbine according to the present invention;

FIG. 2 is a side view of the U-shaped frame of the present invention connected to a reel and a metal wire;

fig. 3 is an enlarged view of the structure of the middle buffer mechanism of the present invention.

In the figure: the device comprises a vertical column 1, a mounting groove 2, a power generation device 3, a rotating shaft 4, a lantern ring 5, fan blades 6, a U-shaped frame 7, a reel 8, a metal stay wire 9, a rotary rod 10, a first spring 11, a telescopic rod 12 and a second spring 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a blade damping device of a wind power generator comprises a vertical column 1 and a mounting groove 2 arranged at the front side of the vertical column 1, a power generating device 3 is inserted in the mounting groove 2, the output end of the power generating device 3 is fixedly connected with a rotating shaft 4 through a coupler, the front end of the rotating shaft 4 is fixedly sleeved with a lantern ring 5, the outer circumference of the lantern ring 5 is provided with a plurality of blades 6, the number of the blades 6 is five to seven, and the blades are all connected with the lantern ring 5 in an integrated forming manner, the outer edge of the power generating device 3 is bilaterally symmetrically provided with a buffer mechanism connected with two opposite inner side walls in the mounting groove 2, the outer edge of the power generating device 3 is vertically symmetrically provided with a traction mechanism connected with two opposite inner side walls in the mounting groove 2, the traction mechanism comprises four U-shaped frames 7 symmetrically and uniformly arranged on the two opposite inner side walls in the mounting groove 2, and, reel 8 has all been fixed to cup joint in the middle part of every gyration pole 10, the metal that is connected with the power generating equipment 3 outer fringe is acted as go-between 9 in the outer winding of reel 8, and all the symmetry is provided with the cover in every U-shaped frame 7 and establishes two first springs 11 at both ends about gyration pole 10, first spring 11 is powerful torsion spring, two first spring 11 relative one end respectively with the left and right sides rigid coupling of reel 8, two first spring 11 back of the body relative one end respectively with two relative inside wall rigid couplings in the U-shaped frame 7.

The buffer mechanism comprises two telescopic rods 12 symmetrically fixed on two opposite inner side walls in the mounting groove 2, opposite ends of the two telescopic rods 12 are fixedly connected with the outer edge of the power generation equipment 3, and second springs 13 are sleeved outside the two telescopic rods 12; both second springs 13 are strong compression springs.

The utility model provides an among aerogenerator's blade damping device, 6 circumference settings of flabellum are outside power generation facility 3's output, and when flabellum 6 was blown by huge wind-force and takes place the tremble like this, traction mechanism and buffer gear's cooperation can realize the stable protection to power generation facility 3, reduce rocking of the flabellum 6 of power generation facility 3 and front side to the at utmost to guarantee the holistic stability of aerogenerator, stop the emergence of incident.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a aerogenerator's blade damping device, includes stand (1) and sets up mounting groove (2) at stand (1) front side, its characterized in that, ann has inserted power generation facility (3) in mounting groove (2), the output of power generation facility (3) has pivot (4) through the shaft coupling rigid coupling, the front end of pivot (4) is fixed to be cup jointed lantern ring (5), lantern ring (5) periphery is provided with a plurality of flabellum (6), the outer fringe bilateral symmetry of power generation facility (3) is provided with the buffer gear who is connected with double-phase relative inside wall in mounting groove (2), just the outer fringe longitudinal symmetry of power generation facility (3) is provided with the tractive mechanism that is connected with double-phase relative inside wall in mounting groove (2).

2. The blade vibration damping device of a wind power generator as claimed in claim 1, the traction mechanism comprises four U-shaped frames (7) symmetrically and uniformly arranged on two opposite inner side walls in the mounting groove (2), rotary rods (10) are rotatably inserted in each U-shaped frame (7), a reel (8) is fixedly sleeved in the middle of each rotary rod (10), a metal stay wire (9) connected with the outer edge of the power generation equipment (3) is wound outside the winding wheel (8), and every all the symmetry is provided with two first springs (11) that the cover was established at both ends about gyration pole (10) in U-shaped frame (7), two the one end that first spring (11) is relative respectively with the left and right sides rigid coupling of reel (8), two the one end that first spring (11) carried on the back mutually is respectively with two relative inside wall rigid couplings in U-shaped frame (7).

3. A blade damping device for a wind turbine according to claim 2, characterised in that the first spring (11) is a strong torsion spring.

4. The blade damping device of the wind driven generator according to claim 1, wherein the damping mechanism comprises two expansion rods (12) symmetrically fixed on two opposite inner side walls in the installation groove (2), one opposite ends of the two expansion rods (12) are fixedly connected with the outer edge of the power generation equipment (3), and a second spring (13) is sleeved on the outer edges of the two expansion rods (12).

5. A blade damping device for a wind turbine according to claim 4, characterised in that both of said second springs (13) are strong compression springs.

6. The blade damping device of the wind driven generator as claimed in claim 1, wherein the number of the fan blades (6) is five to seven and the fan blades and the collar (5) are connected together in an integral manner.